| Author | Message | ||
| Brian Brown (Fishbowlbrian)
Rating: N/A |
Hi Guys: I'm going to buy one of these babies and would like to know what kind of range I need to buy for the average bus use... cyl. head temps, tires, bearings, etc. There's a few options on these things, and the price goes up with each. Temp. range, optical range, emissivity settings, and a laser pointer, among others. Thanks! Brian Brown | ||
| Jack Conrad (Jackconrad)
Rating: N/A |
Brian, The laser pointer helps you aim the gun at the exact spot you want to check the temperature at. My gun has a 6:1 aspect ratio. This means that when the gun is held 6" from the surface on the object, it is measuring a 1" diameter area aroound the laser dot. At 12" from the object, it is measuring a 2" diameter are, at 18" it is measuring a 3" area, etc. For pinpoint readings such as a single core in a radiator, I have to hold the gun extremely close. Temp range will depend on what you plan to measure. If you want to measure exhaust manifold temps, you will need a much higher temp range. I have used mine to check tire and bearing temps, wiring connections for bad connections, radiators for plugged cores, exhaust manifolds to find a misfiring cylinder, sending units to verify gauge accuracy, and exterior skin to compare different colors heat absorbtion rates. Hope this helps, Jack | ||
| Brian Brown (Fishbowlbrian)
Rating: N/A |
Thanks for the info, Jack. Any idea on how hot exhaust manifold gets? I guess I want a gun that'll do most anything I'd want to measure on the bus, even if I have to pay a bit more for it. Most of them run between $50 and $100, depending on features, on the ePlace. Thanks, Brian | ||
| Jack Conrad (Jackconrad)
Rating: N/A |
Not sure, I do not have a pyrometer on our bus yet. I seem to recall someone saying that theirs ran about 900 when crusing and climbed to about 1100 when climbing, but I could be mistaken. Perhaps someone else can give more accurate info on this subject. When I used mine on a gas engine that had just been started and was only ran for about 5 minutes to pinpoint a misfiring cylinder, the temps only got to about 500-600. Hope this helps, Jack | ||
| PAUL COLLYER (Paso_1)
Rating: N/A |
My Ford powerstroke 7.3 diesel on hard acceleration gets to about 1100 65 mph cruise 850-900 They say the pistons will melt @ 1300  My pyrometer seems to react quick to the pedal movement. | ||
| jimmci9 #2 Rating: N/A |
for sale:::; sears/craftsman infrared thermometers.....brand new . in the package, never used... only 2 available at this unheard of low price :::: $45....includes shipping and 2 brand new batteries....specs.... -58 to +518 degreed f.... non-contact surface measurements.... accurate to 2.5 %... laser pointed....ive already sold 7 to other busnuts, and traded 1 away for a railcar engine that didn't run.... amaze your family, antagonize your cat....sears sells for $49... plus tax, then you buy batteries, and have to go shop.... i don't have paypal, so send me a check.... when it clears, i'll ship.... if it bounces, i'll bad-mouth you on he bb's.... jimcat2@webtv.net | ||
| Sojourner (Jjimage)
Rating: N/A |
0º to 500ºF is all you need. Once you have it in your possession you will never want to be without it. A state of art tool that being some what overlook to gain temperature knowledge for trouble-shooting in home, automobile, truck and bus. Raytek MiniTemp MT4 with laser point 0 to 525ºF range is popular model. They do have non laser unit but not good for pin-point at a distance. Sears is perhaps made by Raytek??? Whatever it back by Sears it should be good. About more expensive model to measure higher temp such as exhaust while under load on dyno is the only safety way to gain access. So unless doing dnyo test, it not worth the extra cost. You can still check with low cost MT4 model of which exhaust port is cooler or non firing. Check radiator’s vertical core tube for restriction flow by comparing the others. Compare thermostats opening temp. You will gain in advance knowledge to determine what going on with tires and so on. Battery cable connection while cranking or right after. Before I use my hand contact. Many, many more things not to mention. http://www.howhotisit.com/minitemp.htm FWIW Sojourn for Christ, Jerry | ||
| Mike (Mikemc9)
Rating: N/A |
I had a Sears, was off by about 10 deg. Just got one from Harbor Freight ($50), appears right on. Checked both by shooting at a thermometer and using a $1000 unit for comparison. Both good for 500 deg. | ||
| Brian Brown (Fishbowlbrian)
Rating: N/A |
Thanks for the tips and info, all. Sounds like I need a thermometer AND a pyrometer, since I won't be able to measure exhaust temp. until I pull over anyways (then it ain't really exhaust temp that's meaningful). I'll likely get an 8:1/ 0 to 500 deg. model. The 12:1 is a bit more pricey. Dunno much about emissivity... but since most are fixed, it must be OK for most objects. Thanks again, BB | ||
| jimmci9 #2 Rating: N/A |
for sale::::; used caterpillar 3" dual pyrometer.... has new 12' dual probes...$600..... includes freight to lower 48..... checks clear b4 shipping... jimcat2@webtv.net | ||
| Richard Bowyer (Drivingmisslazy)
Rating: N/A |
Check on the E place. They typically have several. I recently bought a second one for about half price. Richard |